openssh: add CLI line editing to sftp client
CLI line editing and tab completion is quite useful in sftp for users
who uses it daily
I posted simple patch to openssh which add dependency to libedit and
—with-libedit configure build option
Patch is here: https://patchwork.alpinelinux.org/patch/4414/
(from redmine: issue id 9859, created on 2019-01-16, closed on 2019-03-16)